Html2Dce.java analyzer

[sashafirsov]

Html2Dce.java single file( or stdin ) analyzer with output of validation warnings and DCE manifest with source maps
Output format per line is needed for easier parsing by piped process.

• warnings in IDE-friendly format. To be click-through navigation to HTML source
• DCE maifest in JSON format , single line by default for pyping by --pipe CLI option

Document Java CLI

WASM/JS compilation to export Html2DceParser.analyze(in, out)

JS API Documenting, typings

Links: #2